tidealmanac

Castle Islands, Duncan Canal, AK tide chart

NOAA station 9451321 · Reference station · Datum MLLW · Local time (America/Sitka)

Change stationFull year 2026

Today · Sun, Oct 18

High tideLow tide
13.1 ft4.0 m7.4 ft2.3 m1.6 ft0.5 m12 AM6 AMNoon6 PM12 AMNow12:15 AM · 3.2 ft12:15 AM · 0.98 m7:36 AM · 10.7 ft7:36 AM · 3.27 m12:16 PM · 7.2 ft12:16 PM · 2.19 m7:10 PM · 11.6 ft7:10 PM · 3.53 m

NOAA six-minute predicted heights for today. Hours in the station's local time.

Next high7:10 PM11.6 ft3.53 m · in 1h 24m
Next low1:28 AM3.8 ft1.16 m · in 7h 42m
Range today8.3 ft2.54 mNow about 11.0 ft3.36 m and rising
MoonFirstFirst quarter · neap tides

October 2026

Full year
Date1st tide2nd tide3rd tide4th tide
1Thu
4:49 AMHigh · 14.0 ft4.26 m
10:11 AMLow · 3.2 ft0.96 m
4:35 PMHigh · 16.3 ft4.98 m
11:04 PMLow · -0.4 ft-0.13 m
2Fri
5:49 AMHigh · 12.6 ft3.85 m
11:00 AMLow · 4.6 ft1.39 m
5:30 PMHigh · 15.1 ft4.59 m
3Sat
12:06 AMLow · 0.8 ft0.26 m
7:06 AMHigh · 11.7 ft3.56 m
12:04 PMLow · 5.8 ft1.77 m
6:49 PMHigh · 13.9 ft4.22 m
4Sun
1:25 AMLow · 1.8 ft0.56 m
8:34 AMHigh · 11.6 ft3.55 m
1:36 PMLow · 6.5 ft1.97 m
8:23 PMHigh · 13.4 ft4.08 m
5Mon
3:04 AMLow · 2.0 ft0.62 m
9:50 AMHigh · 12.5 ft3.82 m
3:36 PMLow · 5.7 ft1.75 m
9:45 PMHigh · 13.8 ft4.22 m
6Tue
4:26 AMLow · 1.4 ft0.43 m
10:48 AMHigh · 13.9 ft4.23 m
4:57 PMLow · 3.9 ft1.19 m
10:51 PMHigh · 14.7 ft4.48 m
7Wed
5:22 AMLow · 0.6 ft0.20 m
11:35 AMHigh · 15.2 ft4.65 m
5:49 PMLow · 1.9 ft0.59 m
11:46 PMHigh · 15.5 ft4.74 m
8Thu
6:04 AMLow · 0.1 ft0.03 m
12:16 PMHigh · 16.5 ft5.01 m
6:30 PMLow · 0.3 ft0.08 m
9Fri
12:35 AMHigh · 16.2 ft4.93 m
6:41 AMLow · -0.1 ft-0.03 m
12:53 PMHigh · 17.4 ft5.29 m
7:07 PMLow · -1.0 ft-0.30 m
10Sat
1:18 AMHigh · 16.5 ft5.03 m
7:13 AMLow · 0.1 ft0.03 m
1:28 PMHigh · 17.9 ft5.45 m
7:40 PMLow · -1.7 ft-0.52 m
11Sun
1:58 AMHigh · 16.5 ft5.03 m
7:44 AMLow · 0.6 ft0.17 m
2:02 PMHigh · 18.0 ft5.48 m
8:13 PMLow · -1.9 ft-0.59 m
12Mon
2:36 AMHigh · 16.1 ft4.92 m
8:13 AMLow · 1.3 ft0.39 m
2:34 PMHigh · 17.7 ft5.39 m
8:44 PMLow · -1.7 ft-0.50 m
13Tue
3:13 AMHigh · 15.5 ft4.71 m
8:43 AMLow · 2.2 ft0.67 m
3:06 PMHigh · 17.0 ft5.19 m
9:17 PMLow · -1.0 ft-0.30 m
14Wed
3:51 AMHigh · 14.5 ft4.42 m
9:13 AMLow · 3.2 ft0.99 m
3:39 PMHigh · 16.1 ft4.90 m
9:52 PMLow · 0.0 ft-0.01 m
15Thu
4:32 AMHigh · 13.4 ft4.08 m
9:46 AMLow · 4.3 ft1.32 m
4:13 PMHigh · 14.9 ft4.56 m
10:32 PMLow · 1.1 ft0.33 m
16Fri
5:19 AMHigh · 12.2 ft3.72 m
10:24 AMLow · 5.4 ft1.66 m
4:51 PMHigh · 13.7 ft4.18 m
11:18 PMLow · 2.2 ft0.68 m
17Sat
6:19 AMHigh · 11.2 ft3.41 m
11:11 AMLow · 6.4 ft1.96 m
5:46 PMHigh · 12.5 ft3.80 m
18Sun
12:15 AMLow · 3.2 ft0.98 m
7:36 AMHigh · 10.7 ft3.27 m
12:16 PMLow · 7.2 ft2.19 m
7:10 PMHigh · 11.6 ft3.53 m
19Mon
1:28 AMLow · 3.8 ft1.16 m
8:54 AMHigh · 11.1 ft3.37 m
1:52 PMLow · 7.3 ft2.22 m
8:39 PMHigh · 11.5 ft3.50 m
20Tue
2:55 AMLow · 3.8 ft1.14 m
9:53 AMHigh · 12.0 ft3.65 m
3:42 PMLow · 6.3 ft1.91 m
9:48 PMHigh · 12.1 ft3.69 m
21Wed
4:04 AMLow · 3.1 ft0.95 m
10:37 AMHigh · 13.2 ft4.02 m
4:42 PMLow · 4.6 ft1.39 m
10:43 PMHigh · 13.1 ft3.99 m
22Thu
4:51 AMLow · 2.4 ft0.72 m
11:15 AMHigh · 14.5 ft4.42 m
5:23 PMLow · 2.6 ft0.81 m
11:31 PMHigh · 14.1 ft4.31 m
23Fri
5:29 AMLow · 1.7 ft0.51 m
11:51 AMHigh · 15.8 ft4.81 m
5:59 PMLow · 0.7 ft0.23 m
24Sat
12:15 AMHigh · 15.1 ft4.61 m
6:04 AMLow · 1.1 ft0.35 m
12:26 PMHigh · 17.0 ft5.17 m
6:35 PMLow · -1.0 ft-0.30 m
25Sun
12:57 AMHigh · 16.0 ft4.86 m
6:39 AMLow · 0.9 ft0.27 m
1:00 PMHigh · 18.0 ft5.47 m
7:11 PMLow · -2.4 ft-0.72 m
26Mon
1:39 AMHigh · 16.5 ft5.02 m
7:14 AMLow · 0.9 ft0.28 m
1:36 PMHigh · 18.6 ft5.68 m
7:49 PMLow · -3.2 ft-0.98 m
27Tue
2:21 AMHigh · 16.6 ft5.05 m
7:51 AMLow · 1.3 ft0.39 m
2:13 PMHigh · 18.9 ft5.76 m
8:29 PMLow · -3.5 ft-1.05 m
28Wed
3:05 AMHigh · 16.2 ft4.94 m
8:29 AMLow · 2.0 ft0.59 m
2:52 PMHigh · 18.7 ft5.69 m
9:12 PMLow · -3.1 ft-0.93 m
29Thu
3:51 AMHigh · 15.4 ft4.70 m
9:11 AMLow · 2.9 ft0.88 m
3:34 PMHigh · 17.9 ft5.46 m
10:01 PMLow · -2.1 ft-0.65 m
30Fri
4:43 AMHigh · 14.4 ft4.39 m
9:59 AMLow · 4.0 ft1.21 m
4:24 PMHigh · 16.7 ft5.09 m
10:55 PMLow · -0.8 ft-0.26 m
31Sat
5:44 AMHigh · 13.4 ft4.08 m
10:57 AMLow · 5.0 ft1.53 m
5:25 PMHigh · 15.2 ft4.63 m
11:57 PMLow · 0.5 ft0.15 m
Thu14:49 AM14.0 ft4.26 m10:11 AM3.2 ft0.96 m4:35 PM16.3 ft4.98 m11:04 PM-0.4 ft-0.13 mFri25:49 AM12.6 ft3.85 m11:00 AM4.6 ft1.39 m5:30 PM15.1 ft4.59 mSat312:06 AM0.8 ft0.26 m7:06 AM11.7 ft3.56 m12:04 PM5.8 ft1.77 m6:49 PM13.9 ft4.22 mSun41:25 AM1.8 ft0.56 m8:34 AM11.6 ft3.55 m1:36 PM6.5 ft1.97 m8:23 PM13.4 ft4.08 mMon53:04 AM2.0 ft0.62 m9:50 AM12.5 ft3.82 m3:36 PM5.7 ft1.75 m9:45 PM13.8 ft4.22 mTue64:26 AM1.4 ft0.43 m10:48 AM13.9 ft4.23 m4:57 PM3.9 ft1.19 m10:51 PM14.7 ft4.48 mWed75:22 AM0.6 ft0.20 m11:35 AM15.2 ft4.65 m5:49 PM1.9 ft0.59 m11:46 PM15.5 ft4.74 mShow the whole month

Heights relative to MLLW; times local to the station. Predictions from NOAA CO-OPS; not for navigation.

Nearby stations

Distance from this station. A nearer station is not necessarily the right one for your shore.
Beecher PassAK · NOAA 9451287 · 7 mi (11 km)Anchor PointAK · NOAA 9451317 · 9 mi (14 km)Papke's LandingAK · NOAA 9451346 · 9 mi (14 km)Point Lockwood, Woewodski IslandAK · NOAA 9451263 · 9 mi (15 km)